| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. O Tessier-Desrosiers vs N Soudre |
| ½-½ | 28 | 2001 | ch-Quebec Prelim | A12 English with b3 |
| 2. V Gaspariants vs O Tessier-Desrosiers |
 | 1-0 | 44 | 2001 | ch-Quebec Prelim | A07 King's Indian Attack |
| 3. O Tessier-Desrosiers vs E Bannon |
| 0-1 | 53 | 2001 | ch-Quebec Prelim | A05 Reti Opening |
| 4. N Audet-Bouchard vs O Tessier-Desrosiers |
| 0-1 | 27 | 2001 | COQ Open | B45 Sicilian, Taimanov |
| 5. O Tessier-Desrosiers vs V Gaspariants |
| 0-1 | 61 | 2001 | COQ Open | A05 Reti Opening |
| 6. S Bolduc vs O Tessier-Desrosiers |
| ½-½ | 23 | 2001 | COQ Open | A30 English, Symmetrical |
| 7. O Tessier-Desrosiers vs L Hua |
| 0-1 | 103 | 2001 | COQ Open | A37 English, Symmetrical |
| 8. C Ouellet Leveille vs O Tessier-Desrosiers |
| ½-½ | 50 | 2001 | COQ Open | B29 Sicilian, Nimzovich-Rubinstein |
| 9. J Trottier vs O Tessier-Desrosiers |
| 0-1 | 25 | 2001 | COQ Open | A30 English, Symmetrical |
| 10. O Tessier-Desrosiers vs R Chabot |
| 1-0 | 29 | 2001 | COQ Open | A21 English |
| 11. O Tessier-Desrosiers vs I Constantineau |
| 1-0 | 39 | 2001 | COQ Open | A13 English |
| 12. G Mikanovic vs O Tessier-Desrosiers |
| ½-½ | 75 | 2001 | COQ Open | A58 Benko Gambit |
| 13. L Bergez vs O Tessier-Desrosiers |
| ½-½ | 30 | 2003 | Pays de Charleroi op | B29 Sicilian, Nimzovich-Rubinstein |
| 14. O Tessier-Desrosiers vs V Voskanian |
| ½-½ | 57 | 2004 | Quebec-ch | A00 Uncommon Opening |
| 15. O Tessier-Desrosiers vs H Jonkman |
| 0-1 | 30 | 2004 | Canadian Open | C67 Ruy Lopez |
| 16. I Bluvshtein vs O Tessier-Desrosiers |
| 0-1 | 36 | 2004 | Canadian Open | B29 Sicilian, Nimzovich-Rubinstein |
| 17. W Arencibia Rodriguez vs O Tessier-Desrosiers |
| 1-0 | 57 | 2004 | Canadian Open | A58 Benko Gambit |
| 18. A Zatonskih vs O Tessier-Desrosiers |
| 1-0 | 33 | 2004 | Canadian Open | B29 Sicilian, Nimzovich-Rubinstein |
| 19. O Tessier-Desrosiers vs C Thorvardson |
| 0-1 | 25 | 2004 | Canadian Open | B28 Sicilian, O'Kelly Variation |
| 20. K Robinson vs O Tessier-Desrosiers |
| 0-1 | 85 | 2004 | Canadian Open | A39 English, Symmetrical, Main line with d4 |
| 21. O Tessier-Desrosiers vs E Rohanchuk |
| 1-0 | 29 | 2004 | Canadian Open | B27 Sicilian |
| 22. O Tessier-Desrosiers vs E Urquhart |
| 1-0 | 67 | 2004 | Canadian Championship | B13 Caro-Kann, Exchange |
| 23. L Day vs O Tessier-Desrosiers |
| 1-0 | 25 | 2004 | Canadian Championship | A04 Reti Opening |
| 24. O Tessier-Desrosiers vs T Kret |
| ½-½ | 20 | 2004 | Canadian Championship | B33 Sicilian |
| 25. R Gardner vs O Tessier-Desrosiers |
| 1-0 | 77 | 2004 | Canadian Championship | B29 Sicilian, Nimzovich-Rubinstein |
Kibitzing
